Home / 28,229.71-38,957.21-19,276.99

Finding the Fourth Proportional to 28,229.71, 38,957.21 and 19,276.99

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Solution

The fourth proportional to 28,229.71, 38,957.21 and 19,276.99 is: 26,602.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.71 : 38,957.21 = 19,276.99 : x
  2. Step 2: Convert to fraction form
    28,229.71/38,957.21 = 19,276.99/x
  3. Step 3: Cross multiply
    28,229.71x = 38,957.21 × 19,276.99
  4. Step 4: Simplify right side
    28,229.71x = 750,977,747.60
  5. Step 5: Solve for x
    x = 750,977,747.60/28,229.71
  6. Step 6: Final answer
    x = 26,602.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.